Dayco 70629 Radiator Coolant Hose - Lower or Upper

Overview of Dayco Curved Radiator Hose 70629

The Dayco Curved Radiator Hose 70629 is designed to provide reliable coolant flow for a range of vehicles including Buick, Chevrolet, Ford, GMC, Jeep, Mercury, Oldsmobile, and Pontiac models. Engineered with durable EPDM material, this dual inside diameter hose ensures a secure fit and efficient cooling system performance.

• Constructed from high-quality EPDM material for heat and chemical resistance
• Dual inside diameters: 1 1/2 inch and 1 3/4 inch for versatile fitment
• Meets SAE J20R4 Class D-1 and SAE J1684 Type EC specifications
• Black color with a 17-inch trunk height for precise installation
• Compatible with multiple vehicle makes and models including Jeep Cherokee and Chevrolet G20

Detailed Product Description

The Dayco Curved Radiator Hose 70629 is a dual inside diameter hose designed to accommodate varying radiator and engine connections. Made from EPDM, a synthetic rubber known for its resistance to heat, ozone, and coolant chemicals, this hose maintains integrity under demanding operating conditions. The hose features a 1 1/2 inch inside diameter on one end and a 1 3/4 inch inside diameter on the other, allowing it to fit specific radiator and engine ports without modification. Its black color and 17-inch trunk height provide a clean, functional appearance and proper routing within the engine bay. This hose complies with SAE J20R4 Class D-1 and SAE J1684 Type EC standards, ensuring it meets industry requirements for coolant hoses.

Dayco Curved Radiator Hose Product Line

The Curved Radiator Hose line by Dayco focuses on providing hoses with precise bends and dual inside diameters to fit a variety of vehicle cooling system configurations. This product line is engineered to deliver reliable coolant flow and durability, making it suitable for replacement in older and classic vehicles where exact hose shape and size are critical. The 70629 part number is part of this line, offering a tailored fit for several Buick, Chevrolet, Ford, GMC, Jeep, Mercury, Oldsmobile, and Pontiac models.

Common Applications and Problem Solving

• Replacement of worn or cracked radiator coolant hoses
• Resolving coolant leaks caused by hose degradation
• Addressing improper hose fitment due to diameter mismatches
• Preventing overheating by ensuring proper coolant flow
• Maintaining engine bay cleanliness with a correctly sized hose

Installation Notes and Tips

• Verify hose diameters and length against vehicle specifications before installation
• Ensure clamps are properly tightened to prevent leaks without damaging the hose
• Inspect surrounding components for wear or damage during replacement
• Use coolant compatible with EPDM hoses to extend service life
• Allow engine to cool before removing old hose to avoid burns

Quality Assurance and Warranty

Dayco manufactures the Curved Radiator Hose 70629 to meet SAE standards, ensuring consistent quality and performance. The EPDM material and construction provide resistance to heat, ozone, and coolant chemicals, contributing to long service life. Warranty details are provided by Dayco and typically cover defects in material and workmanship under normal use conditions.